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Effect of solution conditions on depression of chlorite using CMC as depressantFENG Bo(冯博), FENG Qi-ming(冯其明), LU Yi-ping(卢毅屏), LI Hao(李浩)(School of Mineral Processing and Bioengineering, Central South University, Changsha 410083, China)Abstract:The effect of solution conditions on the depression of chlorite using CMC (carboxymethyl cellulose) as depressant was studied through flotation tests......
J. Cent. South Univ. Technol. (2008) 15(s1): 488-491 DOI: 10.1007/s11771-008-406-z Synthesis of new EVA graft copolymer and its pour point depressant performance evaluation for Daqing crude oil...: EVA was widely used as the pour point depressant for waxy oil. In order to improve its effect, some graft copolymerization methods should be used to modify EVA’s property. EVA has long side chains......
J. Cent. South Univ. Technol. (2008) 15(s1): 483-487 DOI: 10.1007/s11771-008-405-0 Simulation of pipelining pours point depressant beneficiated waxy crude oil through China West Crude Oil... additives called the pour point depressant (PPD) are getting more and more use. The waxy crude oil is also characterized by its high sensitive to shear history, call the shear history effect[2......
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: The depression mechanism of zinc sulfate (ZnSO4) and sodium dimethyl dithiocarbamate (DMDC) as the combined depressant on sphalerite was investigated by micro-flotation experiments, ion complexing tests... surface more hydrophilic than ZnSO4 or DMDC. XPS analysis indicated that the combined depressant could prevent collector adsorbing on the Pb-activated sphalerite surface by a competitive adsorption method......
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Trans. Nonferrous Met. Soc. China 26(2016) 1112-1117 Flotation of low-grade bauxite using organosilicon cationic collector and starch depressant Xin-yang YU1, Hao-lin WANG1, Qiang-qiang WANG1, Bo... and pyrophyllite, using an organosilicon cationic surfactant (TAS101) as collector and starch as depressant was investigated. The results show that both diaspore and aluminosilicate minerals float readily......
; diaspore; reverse flotation; depressant 1 Introduction The bauxite reserves in China are roughly 2 500 million tons, ranking the fifth in the world. However, these aluminum resources..., diaspore, in the tailing [3-4]. In this process, both collector and depressant, which play different roles and facilitate different functionalities, are essential for the realization of selective......
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), was investigated as depressant on the depression of chalcopyrite and galena, when ammonium dibutyl dithiophosphate (DDTP) was used as the collector in flotation tests. Zeta potential and adsorption measurement were performed to study the interaction between depressant and minerals. The flotation tests of two minerals show that DHDTP has slight depression on chalcopyrite in the whole pH range......
